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Michael's the name
 
Join Date: Sep 2008
Location: Santa Fe
Posts: 14
New Brake Master Cylinder Has Only One Terminal - How do I stop the blinking light?

Hello,

Can anyone tell me how to stop the blinking brake light. I replaced the master cylinder and the brake pressure switch on the new one has only one terminal. The old one had two. I have tried to jumper the two wires and it did not work. Thanks for the help.

Michael

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1974 911T Targa Desert Car No Rust! Ported/Polished/Pealing Paint
Old 09-21-2008, 08:56 AM
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Join Date: Oct 2005
Location: Capistrano Beach, Ca.
Posts: 7,235
Not sure on a 74, but a blinking brake light might be the emergency brake warning. Try releasing the emergency brake or adjust the e-brake swith.
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Old 09-21-2008, 05:16 PM
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Michael's the name
 
Join Date: Sep 2008
Location: Santa Fe
Posts: 14
Thanks

I'll check that. I am pretty sure that the master cylinder pressure switch also causes the flashing as a warning that brake pressure has decreased.

Thanks,
Michael
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1974 911T Targa Desert Car No Rust! Ported/Polished/Pealing Paint
Old 09-22-2008, 05:35 AM
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john walker's workshop's Avatar
 
Join Date: Mar 2001
Location: Marysville Wa.
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pull the wire off. done. ya don't need a light to tell you that the brakes feel funny.
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Old 09-22-2008, 05:51 AM
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Grady Clay's Avatar
 
Join Date: Dec 2003
Location: Arapahoe County, Colorado, USA
Posts: 9,032
I agree with John.

The useful warning light is the “Low fluid level” using a later brake fluid reservoir cap. Just like the oil level, the electric indicator is no substitute for physically checking the level regularly.

Best,
Grady

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Old 09-22-2008, 06:34 AM
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